What have Tottenham Hotspur done this transfer window? Almost nothing. They were quiet for the first couple of months of the transfer window - in fact, they've only recently just made their first signing of the summer.

There's not long left in the transfer window and Tottenham seem to be leaving it pretty late to improve a squad which failed to win the league last season, despite coming close. Only on Thursday did they secure the services of defender Davinson Sanchez from Ajax for a club-record fee of £38m.

Tottenham are also set to complete the signing of Serge Aurier, a right-back from PSG, who has been pretty impressive recently. The deal is rumoured to have already been completed but the 24-year old defender is still awaiting a work permit. According to Spurs boss Mauricio Pochettino, the Premier League runners-up are still looking for another two players (one of which being a new goal-keeper) before deadline day, as well as Aurier.

On top of a looking for a new goalkeeper, Spurs might be in the market for some players to replace the likes Kyle Walker and Dele Alli (if he leaves). Dele Alli has proven himself to be an outstanding player and has put in some great performances, especially last season, and is keen to move to Barcelona, according to Spanish news outlet Don Balon. Alli would be a key-player in anybody's squad, but for Spurs to let him go they'd need to receive a bid in the region of £139m for the 21-year old.

The goal-scoring midfielder has bagged 28 goals in 70 games for Spurs.

Although Barcelona might not need Dele Alli due to their recent purchase of Ousmane Dembele from Borussia Dortmund, they certainly have the finances to sign him following the sale of Neymar.

In my opinion, Spurs need another two or three players to strengthen their squad and contend for the title. Who do you think Tottenham Hotspur need to sign to strengthen their squad? Let me know on Twitter @samjsneddon.